CreditCardNanny is a Web browser extension for Google Chrome and Mozilla Firefox that detects forms that otherwise look secure (with a proper and valid SSL certificate, encrypted, and seemingly safe to enter sensitive data such as credit card details) but actually then submit this form data in a cleartext email to the site administrators. This extension detects such forms and warns you of the possibility that sensitive information may be exposed in clear-text, putting you and your sensitive data at risk. You can test the extension by browsing to https://cc-nanny.appspot.com/test-secure-page, a dummy credit card form that uses a form emailer script, a very common pattern used on an alarmingly large number of Web sites.

Google Calendar Chrome Extension adds a button to your browser toolbar that displays a preview of your calendar while you're navigating. (works on any page). If you're on certain sites where it detects the presence of events, the icon changes to a green "+". Clicking that icon lets you add the event to your Google Calendar, and shows you a Map (if there's a location it could detect.) Supported sites include Facebook, Evite, and any site that uses the hCalendar microformat or derivative microformats such as hResume.

The AlchemyAPI Android SDK enables real-time semantic analysis of text, HTML, or Internet-hosted Web page content. The SDK provides mechanisms to extract Concepts, Named Entities, Keywords and Tags, Categories, and clean HTML into text, and even detects languages. It can analyze text in eight different languages: English, French, German, Italian, Portuguese, Russian, Spanish, and Swedish. Example code and a demo application are included to help get you started.

Chrome Page Notes lets you take notes for Web pages as you visit them and access these notes later when you visit those Web pages again. It provides visual cues to let you know if there are notes available for the Web page that you're on. You can choose to sync your notes automatically to your Google Docs account. You can configure multiple computers to sync to the same account, and thus keep your page notes
synced across multiple computers.

DHTMLX delivers a rich set of JavaScript UI components, including a powerful datagrid, trees, tabs, menus, forms, calendars, and more. The components can easily be integrated into a single Web application interface, which allows Web developers to build Web app interfaces faster. The library comes with HTML5-based charts, allowing developers to generate different types of charts, including line, area, scatter, bar, pie, etc. There is special Connector extension which simplifies integration with the server side for PHP, Java, ASP.NET, and ColdFusion. The supported browsers include Internet Explorer, Firefox, Safari, Chrome, and Opera.

BioLadder.Org is a visualization of the Evolutionary Tree of Life, allowing you to explore how life evolved. You can navigate up and down the tree, watching, for example, amphibians change into dinosaurs, then into birds. It currently works on Chrome, Safari, and IE10.